#include<iostream>
using namespace std;
class Volume
{
    public:
        void set_len_width_heigh();
        void calculate_v();
    private:
        int length;
        int width;
        int height;
        int v;
};
int main()
{
    Volume box;
    box.set_len_width_heigh();
    box.calculate_v();
    system("pasue");
}
void Volume::set_len_width_heigh()
{
    cout<<"Please length width height: ";
    cin>>length;
    cin>>width;
    cin>>height;
}
void Volume::calculate_v()
{
    v = length*width*height;
    cout<<"Volume is: "<<v<<endl;
}